Body-bolster for railway-cars.



No. 67|,l20. Patented Apr. 2, 190|. 0 M STIMSUN BODY BOLSTER FOR RMLWAYCARS.

(Application ld Sept. 1, 1900.)

(No Model.)

A [tl Jj1in/vv TOR MM A TTORNE YJ www4 'myuuulnnm g L k will w/rNEssEs@cm B Y m NrrED STATES BODY-BOLSTER FOR RAILWAY-CARS.

SPECIFICATION forming part 0f Letters Patent N o. 671,120, dated April2, 1901. Application iiled September l, 1900. Serial No. 28,734. (Nomodel.)

To all when@ t may concern:

Be it known that I, OSCAR M. STIMsoN, a citizen of the United States,residing in Chicago, in the county of Cook and State of Illinois,haveinvented a new and useful Improvement in Body-Bolsters forRailway-Cars, of which the following is a specification.

My invention relates to improvements in the construction of car-bodyholsters.

The object of my invention is to provide a strong, efficient, anddurable bod y-bolster for railway-cars which at the same time will be ofa simple and economical construction, so that it may be manufactured atsmall cost.

My invention. consists in the novel construction of parts and devicesand in the novel combinations of parts and devices herein shown anddescribed and by which the above result is accomplished.

In the accompanying drawings, forming a part of this specification,Figure l is a side elevation of a body-bolster for railway-carsembodying my invention. Fig. 2 is a plan View. Figs. 3, 4, and 5 aredetail sections on the lines 3 3, 4 Ll, and 5 5. (Indicated fin Figs. land 2.) y

In the drawings, A A are the longitudinal sills of the car-body,to whichthe bolster is se cured by the bolts a. The bolster consists,essentially,of a rolled-steel tension bar, plate,or member B and arolled-steel compression bar, member,or plate C,combined with an inneror central cast-steel or malleable-iron skeleton bolster D, extendingfrom the center block or draft-tilnber to the end of the bolster andfitting between the tension and compression members or plates B C andprovided at each end with a shoulder or recess d to receive the enlargedor shouldered end Z) 0f the tension member or plate B and with a recess01 shoulder d to receive the end c of the compression member or plate C,said parts being all rmly and rigidly secured together byconnecting-rivets. The shoulder b on the tension-plate B thus abutsdirectly against the shoulder d on the cast-steel or malleableironskeleton D, while the abutting end c of the compression-plate C abuts inthe opposite direction against the shoulder d of the castmetal skeletonor block D. The skeleton or cast frame at each end thereof thus takesthe strain or thrust in both directions of the two plates B C, and theopposing shoulders thus in a large measure relieve the connecting boltsor rivets from shearing strain, and thus add greatly to the strength andrigidity of the bolster.`

The skeleton or frame D is preferably made of` cast-steel or malleableiron and supports, strengthens, and stiffens the plates B C from at orthe middle of the bolster to its end throughout the whole length, andthus serves at once as the end abutment-block and intermediate spaceblocks or struts for the tension and compression members or bars B C.The inner cast-steel skeleton or frame D has a central vertical web ol'2and upper and lower horizontal Webs or flanges cl3 d4, through whichhorizontal webs or fianges the rivets b c2 eX- tend, by which therolled-steel or wroughtN metal bars B C are secured to the skeleton D.The intermediate cast-metal skeleton D may thus be made of acomparatively light weight and stilLwhen combined with the other parts,as illustrated in the drawings, give great strength and stiffness to thebolster. The caststeel skeleton D is further provided with uprightflanges d5 at the edges of its horizontal webs or flanges d3 d4 to formseats or channels d6 for receiving the upper and lower rolled-steel orwrought-metal 'bars B C. F represents the saddle-blocks, secured to thebolster for the truss-rods F of the sills A.

The rolled or wrought metal bars B C are preferably of a plain, lat,orrectangular shape in cross-section, although they may be of any othercross-section desired.

G represents the draft-timbers, which preferably extend through thebolsterthat is to say, between the upper and lower plates B C andbetween the inner ends of the cast-metal skeletons D and the centerpiece or block I-I, which is preferably made in a separate piece fromthe cast-metal skeletons or fillers D. Thimbles K, preferably made ofwrought-iron pipe, through which the bolts a extend, are also preferablyinserted between the upper and lower plates B C, the same extendingthrough the draft-timbers.

i The cast-metal skeletons or fillers D are preferably made, and areillustrated in the drawing as being made, each of a single piece in- IOCstead of being in two or more separate pieces divided eitherlongitudinally or transversely.

The shoulders cl d for the ends of the tension and compression membersor bars B C to abut against at the outer end of each 0f the cast-metalskeletons or iillers D canse said skeleton or ller to directly take thestrain in both directions, and thus serve as a connecting-block for theends of said bars B C. The skeleton iller or connecting-block D alsoserves to separate the tension and compression members or bars B C atthe ends of the bolster and gives a greater thickness or depth to thebolster at its ends and adds greatly to its strength. This feature isspecially Valuable in refrigerator and other cars which carry'the loadehiefiy on the side sills of the car.

OSCAR M. STI'MSON.

Witnesses:

H. M. MUNDAY, L. G. CURTIS.

